Database: Wind Shock Analysis
Event ID: 20090460857
Observation time: 02/15/2009 46.37328 0857 [UT]
|
|
General
Information (About, Top)
| Year |
2009 |
| Fractional day of year |
46.373281 |
| Arrival time of shock [seconds of day] |
32251.5 ± 30.0 |
| Shock type |
SF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
198.956 |
| Y GSE location of spacecraft [Re] |
-64.114 |
| Z GSE location of spacecraft [Re] |
-14.824 |
| Upstream plasma points selected for analysis |
0005 |
| Upstream field points selected for analysis |
0159 |
| Downstream plasma points selected for analysis |
0004
|
| Downstream field points selected for analysis |
0139 |
| Minimum chisq/dof for RH8,RH9,RH10 |
12.09, 13.55, 16.72 |
Event added to database
|
Wed Sep 25 09:49:52 2013
|
Event last processed
|
Wed Sep 25 10:38:21 2013
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
49.130 ± 34.443
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-537.9 ± 1.0 |
-581.9 ± 4.2 |
| Vy GSE [km/s] |
15.4 ± 0.9 |
3.0 ± 5.0 |
| Vz GSE [km/s] |
1.8 ± 6.9 |
17.0 ± 2.0 |
| Wi [km/s] |
45.4 ± 0.9 |
61.5 ± 3.6 |
| We [km/s] |
1434.9 ± 27.2 |
1943.5 ± 113.4 |
| Ni [n/cc] |
2.8 ± 0.1 |
3.3 ± 0.1 |
| Bx GSE [nT] |
5.2 ± 0.1 |
3.5 ± 0.1 |
| By GSE [nT] |
3.1 ± 0.3 |
3.7 ± 0.2 |
| Bz GSE [nT] |
-1.4 ± 0.5 |
-0.7 ± 0.2 |
Plasma Beta
|
0.309 ± 0.303
|
1.012 ± 1.019
|
Sound Speed [km/s]
|
58.58 ± 1.11
|
79.34 ± 4.63
|
Alfven Speed [km/s]
|
81.78 ± 1.91
|
61.15 ± 1.86
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.314 ± 0.152 |
-0.949 ± 0.050 |
0.017 ± 0.017 |
0.96 ± 5.81 |
251.70 ± 9.18 |
| VC |
-0.917 ± 0.043 |
-0.253 ± 0.072 |
0.310 ± 0.300 |
18.06 ± 7.32 |
195.41 ± 4.43 |
| MX1 |
-0.336 ± 0.193 |
-0.939 ± 0.070 |
-0.071 ± 0.071 |
-4.08 ± 8.95 |
250.31 ± 11.80 |
| MX2 |
-0.318 ± 0.160 |
-0.948 ± 0.054 |
-0.010 ± 0.010 |
-0.58 ± 4.86 |
251.46 ± 9.68 |
| MX3 |
-0.297 ± 0.133 |
-0.951 ± 0.045 |
0.087 ± 0.087 |
4.99 ± 12.18 |
252.66 ± 7.98 |
| RH08 |
-0.306 ± 0.037 |
0.312 ± 0.037 |
-0.899 ± 0.489 |
-64.08 ± 1.86 |
134.37 ± 5.73 |
| RH09 |
-0.297 ± 0.059 |
0.350 ± 0.057 |
-0.888 ± 0.502 |
-62.66 ± 3.14 |
130.36 ± 8.24 |
| RH10 |
-0.327 ± 0.062 |
0.252 ± 0.066 |
-0.911 ± 0.473 |
-65.59 ± 3.54 |
142.40 ± 9.83 |
| Average |
-0.389 |
-0.391 |
-0.296 |
-21.623 |
201.084 |
| Median |
-0.314 |
-0.253 |
-0.010 |
-0.582 |
250.307 |
| Deviation |
0.214 |
0.623 |
0.512 |
35.783 |
57.459 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
42.0 ± 3.2 |
293.1 ± 13.3 |
1.21 ± 0.03 |
| VC |
16.3 ± 3.6 |
766.6 ± 17.3 |
1.21 ± 0.03 |
| MX1 |
42.6 ± 3.7 |
304.2 ± 13.2 |
1.21 ± 0.03 |
| MX2 |
42.3 ± 3.4 |
294.3 ± 13.2 |
1.21 ± 0.03 |
| MX3 |
41.9 ± 2.9 |
284.5 ± 13.4 |
1.21 ± 0.03 |
| RH08 |
84.1 ± 3.1 |
155.9 ± 7.4 |
1.21 ± 0.03 |
| RH09 |
82.8 ± 3.0 |
144.2 ± 7.5 |
1.21 ± 0.03 |
| RH10 |
86.8 ± 3.2 |
173.7 ± 31.7 |
1.21 ± 0.03 |
| Average |
54.8 |
302.1 |
1.21 |
| Median |
42.6 |
293.1 |
1.21 |
| Deviation |
26.1 |
199.7 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
138.8 ± 1.0 |
38.2 ± 0.4 |
60.7 ± 1.4 |
93.1 ± 1.2 |
3.63 ± 0.05 |
1.49 ± 0.02 |
| VC |
277.0 ± 1.8 |
54.3 ± 0.8 |
78.5 ± 1.8 |
84.7 ± 1.6 |
5.10 ± 0.05 |
3.27 ± 0.07 |
| MX1 |
138.0 ± 1.5 |
37.8 ± 0.3 |
60.2 ± 1.4 |
93.2 ± 1.2 |
3.65 ± 0.06 |
1.48 ± 0.03 |
| MX2 |
137.9 ± 1.2 |
38.0 ± 0.3 |
60.5 ± 1.4 |
93.1 ± 1.2 |
3.63 ± 0.05 |
1.48 ± 0.02 |
| MX3 |
139.3 ± 0.8 |
38.3 ± 0.4 |
60.9 ± 1.4 |
93.0 ± 1.2 |
3.63 ± 0.03 |
1.50 ± 0.02 |
| RH8 |
-11.7 ± 6.1 |
4.9 ± 0.0 |
8.4 ± 0.2 |
100.5 ± 1.1 |
-2.39 ± 1.23 |
-0.12 ± 0.06 |
| RH9 |
-19.6 ± 6.0 |
6.0 ± 0.0 |
10.3 ± 0.2 |
100.4 ± 1.1 |
-3.26 ± 0.97 |
-0.19 ± 0.06 |
| RH10 |
-4.6 ± 6.2 |
2.7 ± 0.0 |
4.6 ± 0.1 |
100.6 ± 1.1 |
-1.71 ± 2.29 |
-0.05 ± 0.06 |
| Average |
99.4 |
27.5 |
43.0 |
94.8 |
1.5 |
1.1 |
| Median |
138.0 |
38.0 |
60.5 |
93.2 |
3.6 |
1.5 |
| Deviation |
103.5 |
19.8 |
29.9 |
5.5 |
3.4 |
1.2 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
113.0 ± 5.7 |
39.0 ± 1.3 |
45.4 ± 1.4 |
92.3 ± 4.2 |
2.90 ± 0.22 |
1.23 ± 0.11 |
| VC |
228.8 ± 5.3 |
56.1 ± 1.7 |
58.7 ± 1.8 |
83.0 ± 4.3 |
4.08 ± 0.21 |
2.76 ± 0.20 |
| MX1 |
112.7 ± 5.5 |
38.7 ± 1.3 |
45.0 ± 1.4 |
92.4 ± 4.2 |
2.92 ± 0.22 |
1.22 ± 0.11 |
| MX2 |
112.4 ± 5.6 |
38.8 ± 1.3 |
45.2 ± 1.4 |
92.4 ± 4.2 |
2.90 ± 0.22 |
1.22 ± 0.11 |
| MX3 |
113.2 ± 5.7 |
39.2 ± 1.3 |
45.5 ± 1.4 |
92.2 ± 4.2 |
2.89 ± 0.22 |
1.23 ± 0.11 |
| RH8 |
-7.7 ± 2.1 |
5.0 ± 0.2 |
6.3 ± 0.2 |
100.1 ± 4.4 |
-1.55 ± 0.46 |
-0.08 ± 0.02 |
| RH9 |
-14.9 ± 2.3 |
6.1 ± 0.2 |
7.7 ± 0.2 |
100.0 ± 4.4 |
-2.45 ± 0.43 |
-0.15 ± 0.03 |
| RH10 |
-2.1 ± 1.8 |
2.7 ± 0.1 |
3.5 ± 0.1 |
100.2 ± 4.4 |
-0.79 ± 0.68 |
-0.02 ± 0.02 |
| Average |
81.9 |
28.2 |
32.2 |
94.1 |
1.4 |
0.9 |
| Median |
112.7 |
38.8 |
45.2 |
92.4 |
2.9 |
1.2 |
| Deviation |
84.4 |
20.4 |
22.3 |
5.9 |
2.5 |
1.0 |
Survey interval (About, Top)
Selected
data (About, Top)
|
Key plasma parameters
|
Velocity
|
Magnetic Field
|
Simple
Methods
(About, Top)
Rankine Chi^2
Contour (About, Top)
Shock
Speed (About, Top)
Theta Bn (About, Top)
Mach Numbers (About, Top)
Page updated Fri Jun 13 11:06:02 2014
Michael L Stevens
(mstevens@cfa.harvard.edu)
| 
